scholarly journals STUDY ON NEW DEFINITION OF LIFE CYCLE COST COORDINATED TO INVESTMENT EVALUATION WAY OF PRIVATE COMPANY

2001 ◽  
Vol 66 (550) ◽  
pp. 101-106 ◽  
Author(s):  
Akira TAKAKUSAGI
2020 ◽  
Vol 194 ◽  
pp. 03025
Author(s):  
Wei Shurong ◽  
Feng Yuyao ◽  
Liu Kunlun ◽  
Fu Yang

Because of the bad environment of wind farms in the far -reaching sea, the cost of power collector system is high. The contradiction between economy and reliability of the power collector system planning is particularly prominent. According to the particularity of the wind farm in the far-reaching sea and the demand of the power collector system on higher reliability, this paper proposes the definition of topological redundancy of the power collector system and develops a multi-objective optimization model based on the topological redundancy. Thus, the contradictory variables of economy and reliability are optimized. Taking a large-scale offshore wind farm as an example, based on the topological redundancy assessment, the topology of its power collector system is optimized from the perspective of life cycle cost. The results show that, although the initial cost of the optimal redundancy topology is slightly higher than that of the radial structure, the advantage of life cycle cost after 8 years of operations is obvious, which can meet the actual engineering requirements of the power collector system for the wind farm in the far-reaching sea.


2012 ◽  
Vol 253-255 ◽  
pp. 731-734
Author(s):  
Lin Lin Sun ◽  
Chun An You ◽  
Jian Xin Liu ◽  
Ling Zhi Sun

Saving energy is one of the basic national policies, and energy efficiency in building is the important part of energy conservation work. It is of great significance to develop this work permanently. Discusses the definition of energy efficiency in building, introduces the concept of the life cycle, and sets up the life cycle cost estimation model. Through the analysis of energy saving building, comes to an important conclusion. Although the initial investment of energy saving building increases, the whole life cycle cost is obviously lower than general building. With the increasing of the discount rate and the extension of life cycle, the effect is more outstanding.


Author(s):  
Michele Germani ◽  
Marco Mandolini ◽  
Marco Marconi ◽  
Maud Dufrene ◽  
Peggy Zwolinski

During past years several eco-design methodologies have been previously defined but none can be easily integrated in the traditional design process of manufacturing companies. This paper wants to overcome this lack and aims to define a methodology, called G.EN.ESI, to help also those designers without a specific know-how on eco-design, during the development of sustainable products. The methodology has been also contextualized in the traditional product design process, re-engineering this one with new input/output data, actors and specific tools, to demonstrate the applicability in real contexts. The re-engineered process is supported by a new set of integrated software tools, called G.EN.ESI platform. It is made of four tools for the definition of the product life cycle model, two tools for the evaluation of the environmental impact and Life Cycle Cost and a tool to guide the decision-making process during the re-design phase of a product. Furthermore, a web module to retrieve the necessary data from the supply chain subjects has been defined. Finally, the link with the CAD and PLM systems is proposed to increase the usability.


Author(s):  
José Matos ◽  
Anders Solgaard ◽  
Poul Linneberg ◽  
Alfred Strauss ◽  
Irina Stipanovič ◽  
...  

Tools, guidelines and standards for assessment of Life Cycle Cost (LCC) of built environment e.g. buildings, infrastructure assets etc. have gained impact over the past years. Owner and operator application of tools, guidelines and standards enhances optimization of operation and maintenance with due respect to their budgets. In order to aid owners, operators and their designers, a task group under fib has been established to prepare a state-of-the-art report regarding LCC analyses of concrete assets. The state-of-the-art report contains a description of existing LCC standards and guidelines, their applicability, the definition of different cost elements, and the treatment of uncertain information in a reliability or risk based framework, etc. providing the reader with background information and methodology for preparation of such analysis. Moreover, the report contains case studies, presenting the applicability of the LCC analysis methodology.


1994 ◽  
Vol 11 (1) ◽  
pp. 47-56
Author(s):  
Virginia C. Day ◽  
Zachary F. Lansdowne ◽  
Richard A Moynihan ◽  
John A. Vitkevich

2011 ◽  
Vol 4 (5) ◽  
pp. 158-161 ◽  
Author(s):  
A. Morfonios A. Morfonios ◽  
◽  
D. Kaitelidou D. Kaitelidou ◽  
G. Filntisis G. Filntisis ◽  
G. Baltopoulos G. Baltopoulos ◽  
...  

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